Floating
Structures
The
concept of floating structures is not new. Structures such
as pontoon bridges, ferries and oil platforms are some example
of classical floating structures. However it is only recently
the concept of floating structures becomes significant in
civil engineering.
The floating structures
inherently buoyant and stable structures. It is designed to
allow waves to pass through for attenuation and support on
several wave crests, rather than a solid structure designed
to withstand severe wave impacts.
Yumemai Ohashi
Bridge which is located at Osaka City, Japan is one example
of civil engineering floating structure. The bridge is a swing
arch bridge spanning 410m and 31.2 m width. This bridge was
constructed between Yumeshima and Maishima, newly reclaimed
land in the port of Osaka, and is the world's first floating
swing arch bridge. This new bridge is regarded as a high-tech
bridge fitting the 21st century. The design and construction
of the bridge has investigated and conquered many engineering
issue.
Another example
of a floating structure is the Newfoundland Deltaport. It
is an air base that is inherently unique triangular tetrahedral
space frame design. Its delta shape encloses a harbor shielded
from severe ocean conditions. It can be moved from one location
to another or single-point moored with its harbor entrance
always maintained in the lee of strong winds by dynamic positioning
with on board maneuvering thrusters.
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